Minki/linux
1
0
Fork 1
mirror of https://github.com/torvalds/linux.git synced 2024-11-17 17:41:44 +00:00
Code Issues Packages Projects Releases Wiki Activity

arm64: tegra: Enable SMMU translation for PCI on Tegra186

Browse Source 
Commit 954a03be03 ("iommu/arm-smmu: Break insecure users by disabling
bypass by default") intentionally breaks all devices using the SMMU in
bypass mode. This breaks, among other things, PCI support on Tegra186.
Fix this by populating the iommus property and friends for the PCIe
controller.

Fixes: 954a03be03 ("iommu/arm-smmu: Break insecure users by disabling bypass by default")
Signed-off-by: Thierry Reding <treding@nvidia.com>
This commit is contained in:
Thierry Reding 2019-05-06 14:55:31 +02:00
parent dfdbf16c50
commit f2a465e718
1 changed files with 4 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
arch/arm64/boot/dts/nvidia/tegra186.dtsi
View File

@ -673,6 +673,10 @@
<&bpmp TEGRA186_RESET_PCIEXCLK>;
reset-names = "afi", "pex", "pcie_x";
iommus = <&smmu TEGRA186_SID_AFI>;
iommu-map = <0x0 &smmu TEGRA186_SID_AFI 0x1000>;
iommu-map-mask = <0x0>;
status = "disabled";
pci@1,0 {